Init project

.gitignore

@@ -0,0 +1 @@
+/target

Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "task-warrior-gpui"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+gpui = "0.2.2"

src/main.rs

@@ -0,0 +1,91 @@
+use gpui::{
+    prelude::*, App, Application, Context, CursorStyle, KeyDownEvent, SharedString, Window,
+    WindowOptions,
+};
+
+struct HelloWorld {
+    text: SharedString,
+    focus_handle: gpui::FocusHandle,
+}
+
+impl Render for HelloWorld {
+    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
+        let input_content = if self.text.is_empty() {
+            gpui::div()
+                .text_color(gpui::rgb(0x888888))
+                .child("Escribe aqui...")
+        } else {
+            gpui::div().child(self.text.clone())
+        };
+
+        gpui::div()
+            .size_full()
+            .bg(gpui::white())
+            .flex()
+            .flex_col()
+            .gap_3()
+            .justify_center()
+            .items_center()
+            .text_3xl()
+            .child(
+                gpui::div()
+                    .min_w(gpui::rems(12.))
+                    .border_1()
+                    .border_color(gpui::black())
+                    .bg(gpui::white())
+                    .p_2()
+                    .cursor(CursorStyle::IBeam)
+                    .track_focus(&self.focus_handle)
+                    .on_key_down(cx.listener(Self::on_key_down))
+                    .child(input_content),
+            )
+            .child(format!("Hello, {}!", &self.text))
+    }
+}
+
+impl HelloWorld {
+    fn on_key_down(
+        &mut self,
+        event: &KeyDownEvent,
+        _window: &mut Window,
+        cx: &mut Context<Self>,
+    ) {
+        let mut next = self.text.to_string();
+        match event.keystroke.key.as_str() {
+            "backspace" | "delete" => {
+                next.pop();
+            }
+            _ => {
+                let Some(ch) = event.keystroke.key_char.as_ref() else {
+                    return;
+                };
+                if ch == "\n" || ch == "\r" {
+                    return;
+                }
+                next.push_str(ch);
+            }
+        }
+
+        if next != self.text.as_str() {
+            self.text = next.into();
+            cx.notify();
+        }
+    }
+}
+
+fn main() {
+    let app = Application::new();
+
+    app.run(|app: &mut App| {
+        app.open_window(
+            WindowOptions::default(),
+            |_window: &mut Window, app: &mut App| {
+                app.new(|cx: &mut Context<'_, HelloWorld>| HelloWorld {
+                    text: SharedString::from("World"),
+                    focus_handle: cx.focus_handle(),
+                })
+            },
+        )
+        .unwrap();
+    });
+}